Results 11 to 20 of about 290,820 (278)

Accretion in common envelope evolution [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
AbstractCommon envelope evolution (CEE) occurs in some binary systems involving asymptotic giant branch (AGB) or red giant branch (RGB) stars, and understanding this process is crucial for understanding the origins of various transient phenomena. CEE has been shown to be highly asymmetrical and global 3D simulations are needed to help understand the ...
Luke Chamandy, Adam Frank, Eric G Blackman, Jonathan Carroll-Nellenback, Baowei Liu, Yisheng Tu, Jason Nordhaus, Zhuo Chen, Bo Peng   +8 more
openaire   +6 more sources

Common envelope evolution of eccentric binaries [PDF]

Monthly Notices of the Royal Astronomical Society, 2021
ABSTRACT Common envelope evolution (CEE) is believed to be an important stage in the evolution of binary/multiple stellar systems. Following this stage, the CE is thought to be ejected, leaving behind a compact binary (or a merger product).
Hila Glanz, Hagai B Perets
openaire   +4 more sources

Common envelope evolution on a moving mesh [PDF]

Monthly Notices of the Royal Astronomical Society, 2019
AbstractWe outline the methodology of simulating common envelope evolution (CEE) with the moving-mesh code manga. We extend manga to include multiple time-steps. This provides substantial speedups for problems with large dynamic range. We describe the implementation of realistic equations of state relevant in stellar structure and the generation of ...
Philip Chang, Logan J Prust
openaire   +4 more sources

Common envelope evolution [PDF]

Proceedings of the International Astronomical Union, 2011
AbstractMany binary star systems are not wide enough to contain the progenitor stars from which they were made. One explanation for this is that when one star becomes a red giant a common envelope forms around both stars in the binary system. The core of the giant and its companion star continue to orbit one another inside the envelope.
Robert G. Izzard, Philip D. Hall, Thomas M. Tauris, Christopher A. Tout   +3 more
openaire   +1 more source

Common envelope evolution of massive stars [PDF]

Proceedings of the International Astronomical Union, 2018
AbstractThe discovery via gravitational waves of binary black hole systems with total masses greater than 60Mʘ has raised interesting questions for stellar evolution theory. Among the most promising formation channels for these systems is one involving a common envelope binary containing a low metallicity, core helium burning star with mass ⁓30 – 40Mʘ ...
Paul M. Ricker, Frank X. Timmes, Ronald E. Taam, Ronald F. Webbink   +3 more
openaire   +3 more sources

Analytical expressions for the envelope binding energy of giants as a function of basic stellar parameters [PDF]

, 2010
The common-envelope (CE) phase is an important stage in the evolution of binary stellar populations. The most common way to compute the change in orbital period during a CE is to relate the binding energy of the envelope of the Roche-lobe filling giant ...
Kalogera, Vassiliki, Loveridge, Andrew James, van der Sluys, Marc   +2 more
core   +10 more sources

Lessons from the Ionised and Molecular Mass of Post-CE PNe

Galaxies, 2022
Close binary evolution is widely invoked to explain the formation of axisymmetric planetary nebulae after a brief common envelope phase. The evolution of the primary would be interrupted abruptly, its still quite massive envelope being fully ejected to ...
Miguel Santander-García, David Jones, Javier Alcolea, Valentín Bujarrabal, Roger Wesson   +4 more
doaj   +1 more source

Energy budget and core-envelope motion in common envelope evolution [PDF]

Monthly Notices of the Royal Astronomical Society, 2019
We analyze a 3D hydrodynamic simulation of common envelope evolution to understand how energy is transferred between various forms and whether theory and simulation are mutually consistent given the setup. Virtually all of the envelope unbinding in the simulation occurs before the end of the rapid plunge-in phase, here defined to coincide with the ...
Luke Chamandy, Yisheng Tu, Eric G Blackman, Jonathan Carroll-Nellenback, Adam Frank, Baowei Liu, Jason Nordhaus   +6 more
openaire   +2 more sources

Long-term Evolution of Massive-star Post-common-envelope Circumbinary Disks and the Environments of Fast Luminous Transients

The Astrophysical Journal, 2023
If the envelope of a massive star is not entirely removed during common envelope (CE) interaction with an orbiting compact (e.g., black hole (BH) or neutron star (NS)) companion, the residual bound material eventually cools, forming a centrifugally ...
Semih Tuna, Brian D. Metzger
doaj   +1 more source

Detached white dwarf main-sequence star binaries [PDF]

, 2004
We considered the formation of detached white dwarf main-sequence star (WDMS) binaries through seven evolutionary channels subdivided according to the evolutionary process that gives rise to the formation of the white dwarf or its helium-star progenitor:
B. Willems, Boissier, Bond, Burleigh, Burleigh, Chen, Chen, de Kool, de Kool, de Loore, Farmer, Han, Han, Hillwig, Holberg, Hurley, Hurley, Iben, Iben, Iben, Iben, Iben, Iben, Joss, King, Kolb, Kroupa, Kroupa, Langer, Law, Marsh, Marsh, Maxted, Nelson, Politano, Pols, Pylyser, Pylyser, Rappaport, Raymond, Ritter, Saffer, Sandquist, Savonije, Scalo, Schreiber, Silvestri, Tauris, U. Kolb, van den Heuvel, van der Linden, Vennes, Waters, Webbink, Weidemann, Willems   +55 more
core   +2 more sources